Mostrando 2,041 - 2,060 Resultados de 100,426 Para Buscar '"carbón"', tiempo de consulta: 0.76s Limitar resultados
  1. 2041
    “…A morphological trend was observed as a function of temperature whereby graphenated carbon nanotubes (g-CNTs) emerged as an intermediate structure between carbon nanotubes (CNTs) at lower temperatures and vertically oriented carbon nanosheets (CNS), composed of few-layered graphene, at higher temperatures. …”
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  2. 2042
    “…Merr.) cultivation on drained peats could affect the release of carbon dioxide (CO(2)) into the atmosphere and also the leaching of dissolved organic carbon (DOC). …”
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  3. 2043
    “…An estimation procedure for biobased carbon content of polyethylene composite was studied using carbon-14 ((14)C) concentration ratios as measured by accelerated mass spectrometry (AMS). …”
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  4. 2044
    por Hamilton, Stuart E., Lovette, John
    Publicado 2015
    “…In this paper we estimate the living carbon lost from Ecuador’s mangrove forests since the advent of export-focused shrimp aquaculture. …”
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  5. 2045
  6. 2046
    “…Pyrogenic carbon (PyC) is an important component of the global soil carbon (C) pool, but its fate, persistence, and loss dynamics in contrasting soils and environments under planted field conditions are poorly understood. …”
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  7. 2047
    “…The carboncarbon forming step as well as the formation of methane and surface formate involves a transient oxonium ion intermediate, generated by a hydrogen transfer between surface methoxy species and coordinated methanol on adjacent Al sites. …”
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  8. 2048
    “…Room-temperature carbon monoxide oxidation, important for maintaining clean air among other applications, is challenging even after a century of research into carbon monoxide oxidation. …”
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  9. 2049
    “…BACKGROUND: Carbon nanoparticle suspension, using smooth carbon particles at a diameter of 21 nm added with suspending agents, is a stable suspension of carbon pellets of 150 nm in diameter. …”
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  10. 2050
    “…The conversion of casbene to the lathyranes involves an intramolecular carboncarbon ring closure. This requires the activity of two cytochrome P450s that we propose form a 6‐hydroxy‐5,9‐diketocasbene intermediate, which then undergoes an aldol reaction. …”
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  11. 2051
    “…Although the biological fixation of CO(2) by chemolithoautotrophs provides a diverse suite of organic compounds utilized by chemoorganoheterotrophs as a carbon and energy source, the relative amounts of autotrophic C in chemotrophic microbial communities are not well-established. …”
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  12. 2052
    “…The polyaniline/single-walled carbon nanotubes (PANI/SWNTs) composites with a content of SWNTs varying from 8 wt% to 32 wt% were synthesized using a solid-state synthesis method. …”
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  13. 2053
  14. 2054
    “…Injecting and storing of carbon dioxide (CO(2)) in deep geologic formations is considered as one of the promising approaches for geologic carbon storage. …”
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  15. 2055
    “…A multiwall carbon nanotubes-modified carbon paste electrode (MWCNTs/MCPE) was fabricated and used to study the electrooxidation of penicillamine (PA) by electrochemical methods in the presence of methyldopa (MDOP) as a homogeneous mediator. …”
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  16. 2056
    “…To investigate the dynamics of carbon and nitrogen assimilation activities, NanoSIMS was coupled with a stable isotope probing (SIP) experiment and a compound specific isotope analysis (CSIA) of fatty acid methyl ester (FAME). …”
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  17. 2057
    “…Based on low carbon wastewater as the research object and using corncob as an external solid carbon source, the performance of corncob organic matter was assessed for its release potential, quantity of release, and safety of use. …”
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  18. 2058
    “…Polymer composites have been widely applied to reduce weight and improve mechanical properties by mixing polymers with carbon fibers, glass fibers, and carbon nanotubes. …”
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  19. 2059
  20. 2060
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